Curt von Keyserlingk

Lecturer in theoretical physics at @KingsCollegeLon.

Tweeting in a personal capacity. rt's/shares/likes are not endorsements.

[Physical Review X @PhysRevX]

This study proves the emergence of a universal random matrix description of fast mode quantum dynamics in Krylov space. The level-n Green’s function captures this phenomenon and approaches universal scaling forms as it approaches infinity. See how: https://t.co/SvX4axZBtJ

[Curt von Keyserlingk @vk_curt]

@Samuel_Gregson QM works fine so far as we've been able to verify. Some in the collapse crowd think there are modifications to QM, which could in principle become measurable for a sensitive enough experiment e.g., in a large scale quantum computer, if those are ever built.

[Ben Sixsmith @BDSixsmith]

The man who mistook his lie for a fact.
https://t.co/fueQqfDHqY

[Curt von Keyserlingk @vk_curt]

@ThomasVanRiet2 You can associate a dimension (e.g., a box counting dimension) to attractors; this gives some idea as to how many parameters are required to describe the attractor. Comparing this to the overall dimension of phase space gives some idea as to how much memory loss there has been.

[Jess Riedel @Jess_Riedel]

Physics student with similar research interests: come work with me! NTT Research has flexible internships all year round. Let's understand wavefunction branches, the ℏ→0 limit, or something crazier. Link below.

(Pls consider retweeting if your followers might be interested!)

[Satan’s Niece @thekrissychula]

This is high art

[Curt von Keyserlingk @vk_curt]

@gravity_levity Wait, actually. Fig S7 of SM actually does show this? Maybe I'm still missing something. https://t.co/fUvREMkZ7W

[Curt von Keyserlingk @vk_curt]

@dualm I think that scientific fraud and sloppy peer review is bad. I also think that it's bad to publish non-science in a premier science journal, and that it's also an easily avoidable error. Don't you agree?

[Curt von Keyserlingk @vk_curt]

@atheorist The 1d Ising model would like a word.

[Nature is Amazing ☘️ @AMAZlNGNATURE]

This is my favorite video on the internet!!

[Curt von Keyserlingk @vk_curt]

@Jess_Riedel @Isaac__kim You'd need to have something like DFT to work out which experimental knobs to tune in order to modify J/T while fixing everything else.

[Curt von Keyserlingk @vk_curt]

@Jess_Riedel @Isaac__kim The slightly less good outcome is you just get these rules of thumb. e.g., transport property blah increases monotonically with J/T. That's less cool, but still something you could then test in the solid state.

[Curt von Keyserlingk @vk_curt]

@Isaac__kim @Jess_Riedel An easier task is to calculate transport in a Hubbard-like model, even at higher temperatures. Understanding how transport coefficients depend on microscopic parameters is a worthy materials design problem. "we can increase x conductivity by y% by doing z to the system"

[Curt von Keyserlingk @vk_curt]

PhD position in my group! I'm looking for a candidate with a strong background in theoretical physics, and/or quantum information.
https://t.co/yld5NkALgk

[Curt von Keyserlingk @vk_curt]

@JosephPConlon Shankar describes some of this in chapter 5 of Principles of Quantum mechanics (2nd ed), in a particular example (step potential).

[Curt von Keyserlingk @vk_curt]

@QM_Rev I'm definitely behind the times. This is the first time chatgpt has been of more use to me than a google search.

[Curt von Keyserlingk @vk_curt]

I've recently cut my caffeine intake. At the same time, I've started remembering my dreams more reliably once I wake up. Of course this could be a coincidence, but does anyone understand why reducing caffeine might have this effect?

[Curt von Keyserlingk @vk_curt]

@QM_Rev Nice.